List-Unsubscribe header is required

[partomas]

The List-Unsubscribe header is required if you send mass emails, it enables the user to easily unsubscribe from your mailing list.
Our messages does not contain a List-Unsubscribe header eaven if "Opt-Out Entirely" is checked.


Ideal solution: to add List-Unsubscribe header to all mass mail letters if such feature is enable in settings..

[yuri]

https://github.com/espocrm/espocrm/blob/e26026c9ad0db4a09e2983161d5947f8a5b19c3b/application/Espo/Modules/Crm/Tools/MassEmail/DefaultMessageHeadersPreparator.php#L55

We do have.

[partomas]

Thank you Yuri for the link. Now I see where it is.

[partomas]

Thank you yuri for the link. Now I see where it is.

It's solving my initial problem only 50% as Gmail and Yahoo announced that they requiring list-unsubscribe headers in 2024. Both providers will require a valid URL-based list-unsubscribe header that supports one-click unsubscribe.

So here are missing "one-click unsubscribe" string in it. If you’re supporting One-Click unsubscribe via a POST request to the list-unsubscribe URL, we’ll want to add the following header to your emails:

"List-Unsubscribe-Post: List-Unsubscribe=One-Click"

just before "List-Unsubscribe: <https://solarmora.com/unsubscribe/example>" part.


More details in Gmail documentation about that https://support.google.com/a/answer/...ssages-per-day

[yuri]

Implemented for v8.4. ETA is not available yet, but not sooner than the end of Summer.